Gesture

package cn.itcast.gesture;


import java.util.ArrayList;


import android.app.Activity;
import android.content.Intent;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.gesture.Prediction;
import android.net.Uri;
import android.os.Bundle;


public class MainActivity extends Activity {
private boolean success;
private GestureLibrary  library;

    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //找到手势库
        library=GestureLibraries.fromRawResource(this, R.raw.gestures);
        //加载手势库
        success=library.load();
        GestureOverlayView getView=(GestureOverlayView) findViewById(R.id.gestures);
        getView.addOnGesturePerformedListener(new GestureListener());
    }
    
    
    private final class GestureListener implements OnGesturePerformedListener{


public void onGesturePerformed(GestureOverlayView overlay,Gesture gesture) {
if (success) {
//从手势库中查找匹配的手势,最匹配的记录会放在最前面
ArrayList<Prediction> predictions = library.recognize(gesture);
if (!predictions.isEmpty()) {//不为空的话,就会有匹配项
   Prediction prediction= predictions.get(0);//取得第一个元素,最匹配的值
   if( prediction.score>3){//40%的匹配
    if ("close".equals(prediction.name) ){
//关闭应用
    android.os.Process.killProcess(android.os.Process.myPid());
}else if("5566".equals(prediction.name)){
System.out.println("进入了!");
Intent intent = new Intent(Intent.ACTION_CALL, Uri.parse("tel:5566"));
startActivity(intent);
}
   }
}
}
}
    }
    
    
}

注意:需要创建一个raw文件,将你的gesture文件放入此文件夹中.